This is the stuff - https://getcoldturkey.com/writer/. Source: over 1 year ago

Cold Turkey lets you set a word count (or timer) and blocks all other applications until you've written that many words (or for that amount of time). Source: over 1 year ago

Cold Turkey Writer if I'm having trouble with internet distractions. It won't let you leave the app by any means until you hit your target. No copy and paste to fake it, no checking your email or the weather, no playing solitaire, wasting time on reddit or going down a research rabbit hole. Source: over 1 year ago

I always bust this out when I'm in a slump, it works like magic: https://getcoldturkey.com/writer/. Source: about 2 years ago

Cold Turkey Writer does exactly this in a totally complete and badass way. Your computer won't let you do anything except type on an essentially featureless word processor. It turns your computer into a typewriter. Source: over 2 years ago

Editsaurus is covered by the MIT License. https://editsaurus.tylerwalters.com/. Source: about 2 years ago

I use google docs and a mixture of editors. ProWritingAid is my favorite and has a free version (limited to 500 words at a time). I also use a few free editors on occasion: Editsaurus, Typely and Hemingway Editor. Editors are good for finding errors, but also just breaking your text down for you to help you find any weird patterns, overused words, etc. Source: over 2 years ago

You can also use ProWritingAid free (which limits the word count of what you can put in and review). I prefer it to Grammarly, personally, and use it before and after sharing fics with my beta reader. They also have some blog posts that aren't bad. Hemingway Editor and Editsaurus have also been useful to me. Source: over 2 years ago